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Yep. 47.3°C in the far western suburb of Penrith. Sydney CBD only reached 43.4°C though. Interestingly, Penrith was also the hottest place on earth at time.
But the highest record temperature in the Sydney region is 48C, recorded in Richmond RAAF.
Dry for sure, but trust me, a dry 47 C is worse than a humid 35 C. If you have a sufficiently-sized air conditioning system, all else being equal, the dry heat is more taxing on it because a greater differential has to be maintained.
In the same vein, a wet 0 C is far more tolerable and liveable than a dry -20 C.
In the same vein, a wet 0 C is far more tolerable and liveable than a dry -20 C.
If it's sunny & -20C would the heating system have more load than cloudy and 0C? I'm assuming a house with lots of windows facing the south (Northern hemisphere for this example) and none facing the north. I'm also not counting the night because obviously that's when it's highly favorable for the 0C. But I'm wondering if in the middle of the day the heating load may be lower with -20C sunny than 0C cloudy?
Dry for sure, but trust me, a dry 47 C is worse than a humid 35 C. If you have a sufficiently-sized air conditioning system, all else being equal, the dry heat is more taxing on it because a greater differential has to be maintained.
Wouldn't a dry 47C day have a cooler night than a humid 35C day? Then the cooling load on the night of the 47C day may balance out the higher load in the day? Let's assume a 47C day with 15C night vs. a 35C day with a 22C night. You may even be able to open the windows at night if it's 15C at night. I'm assuming a place where such weather is possible, i.e. Sacramento.
If it's sunny & -20C would the heating system have more load than cloudy and 0C? I'm assuming a house with lots of windows facing the south (Northern hemisphere for this example) and none facing the north. I'm also not counting the night because obviously that's when it's highly favorable for the 0C. But I'm wondering if in the middle of the day the heating load may be lower with -20C sunny than 0C cloudy?
It'd be rather unlikely that anyplace capable of reaching -20°C has sun strong enough to make up for a 20°C difference. The dewpoint is so low in both cases, it won't matter to the heating system. Maybe if the house is designed as a very well-insulated greenhouse; lots of very thick windows.
It'd be rather unlikely that anyplace capable of reaching -20°C has sun strong enough to make up for a 20°C difference. The dewpoint is so low in both cases, it won't matter to the heating system. Maybe if the house is designed as a very well-insulated greenhouse; lots of very thick windows.
The reason I ask is because some houses in the Rockies have a passive heating system like this. I suppose a high elevation home at a low latitude it may work? Or perhaps -20C is just too low to overcome?
Wouldn't a dry 47C day have a cooler night than a humid 35C day? Then the cooling load on the night of the 47C day may balance out the higher load in the day? Let's assume a 47C day with 15C night vs. a 35C day with a 22C night. You may even be able to open the windows at night if it's 15C at night. I'm assuming a place where such weather is possible, i.e. Sacramento.
Yep, this topic was discussed in the summer thread:
Isn't only the dry factor, but also the average temps. The max value is always the more noticed, but the daily mean is the one wich shows you the whole picture. And you can see that in Sydney the temps drop down as fast as they rise. So, in the end, the daily mean temps aren't higher than here for instance, despite having those scorching maxs.
Sydney experiences dry heat when the temperature is above 35C. At 45C it's even more drier.
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